WALL TOWNSHIP – An air quality concern at a New Jersey Resources building has caused the evacuation of 300 people and sent seven to the hospital, according to officials.

The building was evacuated after employees started feeling ill, said gas company spokesman Michael Kinney. Their symptoms included feeling light-headed, nausea and dizziness, he said.

Seven people were taken to the hospital, three were treated on scene and three others refused treatment, Kinney said.

The building houses the main office for New Jersey Resources, the parent company of New Jersey Natural Gas, as well as office space for other companies, Kinney said. The 300 people who work inside the building have been evacuated to another company building across the street.